Lennox Furnaces

SLP99V Variable-Capacity Gas Furnace

The quietest and most efficient furnace you can buy

  • Efficiency Rating (AFUE) : up to 99.0
SL297NV Variable-Speed, Ultra-Low Emissions Gas Furnace

First-in-class, lowest emission furnace on the market

  • Efficiency Rating (AFUE) : up to 97.5
SL280V Variable-Speed Gas Furnace

The quietest furnace in its class

  • Efficiency Rating (AFUE) : 80.0
SL280NV Variable-Speed, Ultra-Low Emissions Gas Furnace

First-in-class, lowest emission furnace on the market

  • Efficiency Rating (AFUE) : 80.0
EL297V Gas Furnace

High-efficiency, digital, two-stage, variable-speed gas furnace

  • Efficiency Rating (AFUE) : up to 97.0
EL296V High-Efficiency, Two-Stage Gas Furnace

High-efficiency, variable-speed gas furnace

  • Efficiency Rating (AFUE) : 96.0